/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/parallel/ticket-8.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-7cd14b8b9f04096d8ddfd3d9cd8a4ac590fe5404-7cd14b8 [2021-03-11 06:34:06,716 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-11 06:34:06,719 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-11 06:34:06,754 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-03-11 06:34:06,755 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-03-11 06:34:06,758 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-03-11 06:34:06,760 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-03-11 06:34:06,765 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-03-11 06:34:06,767 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-03-11 06:34:06,770 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-03-11 06:34:06,771 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-03-11 06:34:06,772 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-03-11 06:34:06,773 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-03-11 06:34:06,774 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-03-11 06:34:06,776 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-03-11 06:34:06,777 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-03-11 06:34:06,779 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-03-11 06:34:06,780 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-03-11 06:34:06,782 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-03-11 06:34:06,790 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-03-11 06:34:06,792 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-03-11 06:34:06,793 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-03-11 06:34:06,794 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-03-11 06:34:06,796 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-03-11 06:34:06,801 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-03-11 06:34:06,801 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-03-11 06:34:06,801 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-03-11 06:34:06,803 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-03-11 06:34:06,803 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-03-11 06:34:06,804 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-03-11 06:34:06,804 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-03-11 06:34:06,805 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-03-11 06:34:06,806 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-03-11 06:34:06,807 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-03-11 06:34:06,807 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-03-11 06:34:06,807 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-03-11 06:34:06,808 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-03-11 06:34:06,808 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-03-11 06:34:06,808 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-03-11 06:34:06,809 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-03-11 06:34:06,809 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-03-11 06:34:06,813 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf [2021-03-11 06:34:06,844 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-11 06:34:06,844 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-11 06:34:06,847 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-11 06:34:06,847 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-11 06:34:06,848 INFO L138 SettingsManager]: * Use SBE=true [2021-03-11 06:34:06,848 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-11 06:34:06,848 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-11 06:34:06,848 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-11 06:34:06,848 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-11 06:34:06,848 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-11 06:34:06,849 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-11 06:34:06,849 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-11 06:34:06,849 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-11 06:34:06,849 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-11 06:34:06,850 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-11 06:34:06,850 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-11 06:34:06,850 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-11 06:34:06,850 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-11 06:34:06,850 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-11 06:34:06,850 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-11 06:34:06,851 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-11 06:34:06,851 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-11 06:34:06,851 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-11 06:34:06,851 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-11 06:34:06,851 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-11 06:34:06,851 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-11 06:34:06,851 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-11 06:34:06,851 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-03-11 06:34:06,852 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-03-11 06:34:06,852 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-11 06:34:07,133 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-11 06:34:07,148 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-11 06:34:07,150 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-11 06:34:07,151 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-03-11 06:34:07,152 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-03-11 06:34:07,152 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/parallel/ticket-8.wvr.bpl [2021-03-11 06:34:07,153 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/parallel/ticket-8.wvr.bpl' [2021-03-11 06:34:07,177 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-11 06:34:07,181 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-03-11 06:34:07,183 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-11 06:34:07,183 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-11 06:34:07,183 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-11 06:34:07,193 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "ticket-8.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.03 06:34:07" (1/1) ... [2021-03-11 06:34:07,198 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "ticket-8.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.03 06:34:07" (1/1) ... [2021-03-11 06:34:07,204 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-11 06:34:07,205 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-11 06:34:07,205 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-11 06:34:07,205 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-11 06:34:07,211 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "ticket-8.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.03 06:34:07" (1/1) ... [2021-03-11 06:34:07,211 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "ticket-8.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.03 06:34:07" (1/1) ... [2021-03-11 06:34:07,212 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "ticket-8.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.03 06:34:07" (1/1) ... [2021-03-11 06:34:07,212 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "ticket-8.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.03 06:34:07" (1/1) ... [2021-03-11 06:34:07,215 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "ticket-8.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.03 06:34:07" (1/1) ... [2021-03-11 06:34:07,216 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "ticket-8.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.03 06:34:07" (1/1) ... [2021-03-11 06:34:07,217 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "ticket-8.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.03 06:34:07" (1/1) ... [2021-03-11 06:34:07,218 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-11 06:34:07,219 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-11 06:34:07,219 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-11 06:34:07,219 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-11 06:34:07,221 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "ticket-8.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.03 06:34:07" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-11 06:34:07,283 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-03-11 06:34:07,284 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-03-11 06:34:07,285 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-03-11 06:34:07,286 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-03-11 06:34:07,286 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-03-11 06:34:07,286 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-03-11 06:34:07,286 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-03-11 06:34:07,286 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-11 06:34:07,286 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-11 06:34:07,286 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2021-03-11 06:34:07,286 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-03-11 06:34:07,286 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-03-11 06:34:07,287 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread4 given in one single declaration [2021-03-11 06:34:07,287 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2021-03-11 06:34:07,287 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2021-03-11 06:34:07,287 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread5 given in one single declaration [2021-03-11 06:34:07,287 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2021-03-11 06:34:07,288 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2021-03-11 06:34:07,289 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread6 given in one single declaration [2021-03-11 06:34:07,289 INFO L130 BoogieDeclarations]: Found specification of procedure thread6 [2021-03-11 06:34:07,289 INFO L138 BoogieDeclarations]: Found implementation of procedure thread6 [2021-03-11 06:34:07,290 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread7 given in one single declaration [2021-03-11 06:34:07,290 INFO L130 BoogieDeclarations]: Found specification of procedure thread7 [2021-03-11 06:34:07,290 INFO L138 BoogieDeclarations]: Found implementation of procedure thread7 [2021-03-11 06:34:07,290 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread8 given in one single declaration [2021-03-11 06:34:07,291 INFO L130 BoogieDeclarations]: Found specification of procedure thread8 [2021-03-11 06:34:07,291 INFO L138 BoogieDeclarations]: Found implementation of procedure thread8 [2021-03-11 06:34:07,292 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-03-11 06:34:07,635 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-11 06:34:07,636 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-03-11 06:34:07,637 INFO L202 PluginConnector]: Adding new model ticket-8.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.03 06:34:07 BoogieIcfgContainer [2021-03-11 06:34:07,637 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-11 06:34:07,639 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-11 06:34:07,639 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-11 06:34:07,641 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-11 06:34:07,641 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "ticket-8.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.03 06:34:07" (1/2) ... [2021-03-11 06:34:07,641 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18da0f7 and model type ticket-8.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.03 06:34:07, skipping insertion in model container [2021-03-11 06:34:07,642 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "ticket-8.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.03 06:34:07" (2/2) ... [2021-03-11 06:34:07,642 INFO L111 eAbstractionObserver]: Analyzing ICFG ticket-8.wvr.bpl [2021-03-11 06:34:07,647 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-11 06:34:07,650 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-03-11 06:34:07,650 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-11 06:34:07,724 INFO L149 ThreadInstanceAdder]: Constructed 8 joinOtherThreadTransitions. [2021-03-11 06:34:07,738 INFO L253 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2021-03-11 06:34:07,756 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-11 06:34:07,756 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-11 06:34:07,756 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-11 06:34:07,756 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-11 06:34:07,756 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-11 06:34:07,756 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-11 06:34:07,756 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-11 06:34:07,756 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-11 06:34:07,765 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 95 places, 70 transitions, 204 flow [2021-03-11 06:34:07,799 INFO L129 PetriNetUnfolder]: 0/62 cut-off events. [2021-03-11 06:34:07,799 INFO L130 PetriNetUnfolder]: For 8/8 co-relation queries the response was YES. [2021-03-11 06:34:07,800 INFO L84 FinitePrefix]: Finished finitePrefix Result has 95 conditions, 62 events. 0/62 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 179 event pairs, 0 based on Foata normal form. 0/61 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2021-03-11 06:34:07,800 INFO L82 GeneralOperation]: Start removeDead. Operand has 95 places, 70 transitions, 204 flow [2021-03-11 06:34:07,804 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 85 places, 60 transitions, 168 flow [2021-03-11 06:34:07,828 INFO L129 PetriNetUnfolder]: 0/59 cut-off events. [2021-03-11 06:34:07,828 INFO L130 PetriNetUnfolder]: For 8/8 co-relation queries the response was YES. [2021-03-11 06:34:07,829 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 06:34:07,829 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 06:34:07,829 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 06:34:07,835 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 06:34:07,836 INFO L82 PathProgramCache]: Analyzing trace with hash -1746395252, now seen corresponding path program 1 times [2021-03-11 06:34:07,842 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 06:34:07,843 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1993277700] [2021-03-11 06:34:07,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 06:34:07,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 06:34:08,124 INFO L142 QuantifierPusher]: treesize reduction 15, result has 46.4 percent of original size [2021-03-11 06:34:08,126 INFO L147 QuantifierPusher]: treesize reduction 4, result has 69.2 percent of original size 9 [2021-03-11 06:34:08,152 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 06:34:08,153 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 06:34:08,159 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 06:34:08,160 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 06:34:08,160 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 06:34:08,161 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-03-11 06:34:08,165 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 06:34:08,166 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 06:34:08,167 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 06:34:08,167 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 06:34:08,168 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 06:34:08,169 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 06:34:08,170 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 06:34:08,170 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 06:34:08,171 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 06:34:08,171 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 06:34:08,184 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 06:34:08,185 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-03-11 06:34:08,185 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 06:34:08,186 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 06:34:08,188 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 06:34:08,188 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1993277700] [2021-03-11 06:34:08,189 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 06:34:08,189 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-11 06:34:08,189 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1410736016] [2021-03-11 06:34:08,196 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-11 06:34:08,196 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 06:34:08,206 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-11 06:34:08,207 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-03-11 06:34:08,210 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 70 [2021-03-11 06:34:08,212 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 85 places, 60 transitions, 168 flow. Second operand has 5 states, 5 states have (on average 53.8) internal successors, (269), 5 states have internal predecessors, (269), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 06:34:08,213 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 06:34:08,213 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 70 [2021-03-11 06:34:08,214 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 06:34:16,759 INFO L129 PetriNetUnfolder]: 55199/86738 cut-off events. [2021-03-11 06:34:16,759 INFO L130 PetriNetUnfolder]: For 1843/1843 co-relation queries the response was YES. [2021-03-11 06:34:17,191 INFO L84 FinitePrefix]: Finished finitePrefix Result has 156673 conditions, 86738 events. 55199/86738 cut-off events. For 1843/1843 co-relation queries the response was YES. Maximal size of possible extension queue 4586. Compared 783588 event pairs, 26068 based on Foata normal form. 1/86104 useless extension candidates. Maximal degree in co-relation 156630. Up to 34992 conditions per place. [2021-03-11 06:34:17,547 INFO L132 encePairwiseOnDemand]: 51/70 looper letters, 38 selfloop transitions, 17 changer transitions 1/97 dead transitions. [2021-03-11 06:34:17,548 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 89 places, 97 transitions, 354 flow [2021-03-11 06:34:17,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-11 06:34:17,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-11 06:34:17,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 307 transitions. [2021-03-11 06:34:17,562 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.8771428571428571 [2021-03-11 06:34:17,563 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 307 transitions. [2021-03-11 06:34:17,563 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 307 transitions. [2021-03-11 06:34:17,566 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 06:34:17,568 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 307 transitions. [2021-03-11 06:34:17,572 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 61.4) internal successors, (307), 5 states have internal predecessors, (307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 06:34:17,579 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 70.0) internal successors, (420), 6 states have internal predecessors, (420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 06:34:17,580 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 70.0) internal successors, (420), 6 states have internal predecessors, (420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 06:34:17,581 INFO L185 Difference]: Start difference. First operand has 85 places, 60 transitions, 168 flow. Second operand 5 states and 307 transitions. [2021-03-11 06:34:17,581 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 89 places, 97 transitions, 354 flow [2021-03-11 06:34:17,840 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 73 places, 97 transitions, 322 flow, removed 0 selfloop flow, removed 16 redundant places. [2021-03-11 06:34:17,845 INFO L241 Difference]: Finished difference. Result has 76 places, 75 transitions, 260 flow [2021-03-11 06:34:17,846 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=70, PETRI_DIFFERENCE_MINUEND_FLOW=136, PETRI_DIFFERENCE_MINUEND_PLACES=69, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=60, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=260, PETRI_PLACES=76, PETRI_TRANSITIONS=75} [2021-03-11 06:34:17,847 INFO L335 CegarLoopForPetriNet]: 85 programPoint places, -9 predicate places. [2021-03-11 06:34:17,848 INFO L480 AbstractCegarLoop]: Abstraction has has 76 places, 75 transitions, 260 flow [2021-03-11 06:34:17,848 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 53.8) internal successors, (269), 5 states have internal predecessors, (269), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 06:34:17,848 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 06:34:17,849 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 06:34:17,849 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-11 06:34:17,849 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 06:34:17,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 06:34:17,851 INFO L82 PathProgramCache]: Analyzing trace with hash -930771594, now seen corresponding path program 2 times [2021-03-11 06:34:17,851 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 06:34:17,851 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [988078554] [2021-03-11 06:34:17,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 06:34:17,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 06:34:17,930 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 06:34:17,931 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 06:34:17,935 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 06:34:17,935 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-11 06:34:17,939 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 06:34:17,940 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-11 06:34:17,944 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 06:34:17,945 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-11 06:34:17,950 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 06:34:17,950 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-11 06:34:17,957 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 06:34:17,958 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-11 06:34:17,969 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 06:34:17,970 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-11 06:34:17,979 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 06:34:17,980 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-11 06:34:18,011 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 06:34:18,011 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-11 06:34:18,038 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 06:34:18,038 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 06:34:18,039 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 06:34:18,039 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [988078554] [2021-03-11 06:34:18,039 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 06:34:18,039 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 06:34:18,039 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [812652595] [2021-03-11 06:34:18,040 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 06:34:18,040 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 06:34:18,041 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 06:34:18,041 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-03-11 06:34:18,043 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 44 out of 70 [2021-03-11 06:34:18,044 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 76 places, 75 transitions, 260 flow. Second operand has 11 states, 11 states have (on average 46.27272727272727) internal successors, (509), 11 states have internal predecessors, (509), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 06:34:18,044 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 06:34:18,044 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 44 of 70 [2021-03-11 06:34:18,044 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 06:40:42,631 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([144] L32-->thread1FINAL: Formula: (= v_s_2 (+ v_s_3 1)) InVars {s=v_s_3} OutVars{s=v_s_2} AuxVars[] AssignedVars[s][165], [99#true, 67#thread1FINALtrue, 70#L68true, Black: 101#(and (= x t) (= t 0) (not b)), 73#L38true, 74#L56true, Black: 102#(and (not b) (not (= x 1))), Black: 103#(not b), 14#thread7FINALtrue, 114#(<= (+ s 4) t), 56#L129true, 29#L86true, 62#thread5ENTRYtrue]) [2021-03-11 06:40:42,641 INFO L384 tUnfolder$Statistics]: this new event has 25 ancestors and is not cut-off event [2021-03-11 06:40:42,641 INFO L387 tUnfolder$Statistics]: existing Event has 25 ancestors and is not cut-off event [2021-03-11 06:40:42,641 INFO L387 tUnfolder$Statistics]: existing Event has 25 ancestors and is not cut-off event [2021-03-11 06:40:42,642 INFO L387 tUnfolder$Statistics]: existing Event has 25 ancestors and is not cut-off event [2021-03-11 06:40:43,287 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([144] L32-->thread1FINAL: Formula: (= v_s_2 (+ v_s_3 1)) InVars {s=v_s_3} OutVars{s=v_s_2} AuxVars[] AssignedVars[s][165], [99#true, 67#thread1FINALtrue, Black: 101#(and (= x t) (= t 0) (not b)), 73#L38true, 74#L56true, Black: 102#(and (not b) (not (= x 1))), Black: 103#(not b), 76#thread4ENTRYtrue, 14#thread7FINALtrue, 17#L80true, 114#(<= (+ s 4) t), 56#L129true, 29#L86true]) [2021-03-11 06:40:43,288 INFO L384 tUnfolder$Statistics]: this new event has 25 ancestors and is not cut-off event [2021-03-11 06:40:43,289 INFO L387 tUnfolder$Statistics]: existing Event has 25 ancestors and is not cut-off event [2021-03-11 06:40:43,289 INFO L387 tUnfolder$Statistics]: existing Event has 25 ancestors and is not cut-off event [2021-03-11 06:40:43,289 INFO L387 tUnfolder$Statistics]: existing Event has 25 ancestors and is not cut-off event [2021-03-11 06:42:38,813 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([144] L32-->thread1FINAL: Formula: (= v_s_2 (+ v_s_3 1)) InVars {s=v_s_3} OutVars{s=v_s_2} AuxVars[] AssignedVars[s][200], [67#thread1FINALtrue, 99#true, 70#L68true, 73#L38true, Black: 101#(and (= x t) (= t 0) (not b)), 74#L56true, Black: 102#(and (not b) (not (= x 1))), Black: 103#(not b), 115#(<= (+ s 5) t), 51#thread5FINALtrue, 56#L129true, 26#L98true, 29#L86true]) [2021-03-11 06:42:38,813 INFO L384 tUnfolder$Statistics]: this new event has 26 ancestors and is cut-off event [2021-03-11 06:42:38,813 INFO L387 tUnfolder$Statistics]: existing Event has 26 ancestors and is cut-off event [2021-03-11 06:42:38,814 INFO L387 tUnfolder$Statistics]: existing Event has 26 ancestors and is cut-off event [2021-03-11 06:42:38,814 INFO L387 tUnfolder$Statistics]: existing Event has 26 ancestors and is cut-off event [2021-03-11 06:42:38,928 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([144] L32-->thread1FINAL: Formula: (= v_s_2 (+ v_s_3 1)) InVars {s=v_s_3} OutVars{s=v_s_2} AuxVars[] AssignedVars[s][200], [99#true, 67#thread1FINALtrue, 70#L68true, Black: 101#(and (= x t) (= t 0) (not b)), 73#L38true, Black: 102#(and (not b) (not (= x 1))), 74#L56true, Black: 103#(not b), 45#L74true, 14#thread7FINALtrue, 115#(<= (+ s 5) t), 56#L129true, 29#L86true]) [2021-03-11 06:42:38,928 INFO L384 tUnfolder$Statistics]: this new event has 26 ancestors and is cut-off event [2021-03-11 06:42:38,928 INFO L387 tUnfolder$Statistics]: existing Event has 26 ancestors and is cut-off event [2021-03-11 06:42:38,929 INFO L387 tUnfolder$Statistics]: existing Event has 26 ancestors and is cut-off event [2021-03-11 06:42:38,929 INFO L387 tUnfolder$Statistics]: existing Event has 26 ancestors and is cut-off event [2021-03-11 06:42:38,973 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([144] L32-->thread1FINAL: Formula: (= v_s_2 (+ v_s_3 1)) InVars {s=v_s_3} OutVars{s=v_s_2} AuxVars[] AssignedVars[s][165], [67#thread1FINALtrue, 99#true, 70#L68true, Black: 101#(and (= x t) (= t 0) (not b)), 73#L38true, Black: 102#(and (not b) (not (= x 1))), 74#L56true, Black: 103#(not b), 14#thread7FINALtrue, 81#L91true, 114#(<= (+ s 4) t), 56#L129true, 62#thread5ENTRYtrue]) [2021-03-11 06:42:38,974 INFO L384 tUnfolder$Statistics]: this new event has 26 ancestors and is cut-off event [2021-03-11 06:42:38,974 INFO L387 tUnfolder$Statistics]: existing Event has 26 ancestors and is cut-off event [2021-03-11 06:42:38,974 INFO L387 tUnfolder$Statistics]: existing Event has 26 ancestors and is cut-off event [2021-03-11 06:42:38,974 INFO L387 tUnfolder$Statistics]: existing Event has 26 ancestors and is cut-off event [2021-03-11 06:42:40,036 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([144] L32-->thread1FINAL: Formula: (= v_s_2 (+ v_s_3 1)) InVars {s=v_s_3} OutVars{s=v_s_2} AuxVars[] AssignedVars[s][165], [67#thread1FINALtrue, 99#true, 73#L38true, Black: 101#(and (= x t) (= t 0) (not b)), Black: 102#(and (not b) (not (= x 1))), 74#L56true, Black: 103#(not b), 76#thread4ENTRYtrue, 14#thread7FINALtrue, 17#L80true, 81#L91true, 114#(<= (+ s 4) t), 56#L129true]) [2021-03-11 06:42:40,036 INFO L384 tUnfolder$Statistics]: this new event has 26 ancestors and is cut-off event [2021-03-11 06:42:40,036 INFO L387 tUnfolder$Statistics]: existing Event has 26 ancestors and is cut-off event [2021-03-11 06:42:40,036 INFO L387 tUnfolder$Statistics]: existing Event has 26 ancestors and is cut-off event [2021-03-11 06:42:40,036 INFO L387 tUnfolder$Statistics]: existing Event has 26 ancestors and is cut-off event Received shutdown request... Cannot interrupt operation gracefully because timeout expired. Forcing shutdown